Cigarette-machine cut-off



March 27, 1928.

` T. c. sHEEHAN CIGARETTE MAcHINE cuir-OFF Filed Aug. 21. 1926 ATTORNEYy is provided two alternately acting Patented Mar. 27, ,1928.

THOMAS c. sannnnn, on Urrnnlxonmcnam, New JERSEY, AssIGNon ToAMEnIcA-NMACHINE a vornimmt aooJ/IPANLA CORPORATION? OF NEWJEBSEY.

,YCIGARETTEQMACH'INE four-Orr.

This invention relaties 'to an' nnproved"l cigarette machine cutoff, andit' 'fhas forlits main'k obj-ect the production fof la cutoff l for Ycontinuous rod 'cigarette machines which j dynamical-ly balanced to`enable it 4to loperaic and then specifically set forth in the claimshereunto appended.

In the accompanying drawings, in which like characters of referenceindicate the same or like parts, Fig'. 1 is a side view of a knifeforming a part of the invention; Fig. 2 is a side elevation, partly insection, of a cutoff constructed in accordance with the invention; Fig.3 is an end elevation of the/knife holder shown in Fig. 2; Fig. 4 is across section taken on the line 4-4 in` Fig. 3; Fig. 5 is a sideelevation, partly in section, of a modified form of knife holder; andFig. 6 is an end elevation of the holder shown in Fig. 5. l

In carrying the invention into effect, there knives, a dynamicallybalanced holder forl said knives, and means wherebyv said knives may beadjusted and held at vdiametrically Vopposite positions in said holderwithout disturbing the dynamic balance of the cutoff.

In the best constructions contemplated, said means includes slides towhich vthe knives are secured, and means for producing simultaneous andequal movements of'said slides and knives to take up knife wear. Theseparts may be varied in construction withinthe scope ofthe claims, forthe specic structure selected to illustrate the invention is but one ofnumerous possible concrete embodiments of the same. The invention,therefore, is not to be restricted to the precise details of thestructure shown and described.

Referring to the drawings: The vknife 7 .is a thin and easilymanufactured wafer-like blade having parallel side' edges 8, and asegmental cutting edge 9 which has its centre v edges,ltlie rear "edge`11Vbeing a straight' line'` perpendicular:tofthe side edges-8. 'B yplacing such asymmetrical 'knife eccentriv-v. .y

` cally rinthe holder, thesweep of the cutting edge, asshOWI-,ilby,thefdgttedlines 3, i 'will 'bel 'suchl as tofgradnally vcuit through circles 3 scribedbythfe twofeiidsi'of the cutting edge. l

The knives 7 are clamped to the'holder 14, Figs. 2 to 4, by means ofclamps 15 set at the proper angle to obtain the required cutting rangebetween the circles 13, 13. The clamps 15 are secured to the holder 14by means of screws 16. The holder 14, whic is shaped symmetrically anddynamically balanced, is'secured to a driving shaft 17 by meansofawasher 18 'and nut 19, the latter having an annular groove 2O forlightness, and a flange 21Vfor shedding oil. A dished ring 22, placedbehind the holder 14, keeps oil from the other side ofthe knives.

AY bracket 23, depending from a bearing 24, supports a carrier 25 forthe ledger plates 26 throughv which the cigarette rod 12 passes to becutby the knives 7 ,the rodl 12 being y guided into the ledgerv plate tubes26 by the Y bell mouth 27. y i

Referring particularly to Figs. 5 and 6, the holder consists of twodiscs 27 and 28 between which are clamped the slides 29 by means of anut 19. TheseJ slides, to which the knives 7 are permanently fastened byl Yduring the entire life ofthe knives, and of similaiknivessubsequently used. What is claimed is: f

1. In a cigarette machinecutolf, the combination with two alternatelyacting knives,

of a dynamicallybalanced holder for said knives, and means for`simultaneously `andy equally adjusting and holding said knives losy atdiametrically opposite positions ,in said f holder without ydisturbingthe dynamic balance of the cutoff.

2. In a cigarette machine cutoff, the combination with two alternatelyacting knives,

ol` a dynamically balanced holder for said means including ltwo slidesone of which is.

attached to each knife,and means'for simultaneously and equally movingsaid slides.

3. In a cigarette machine cutoff, the com- Y bination with tw'oalternately acting knives,

of a' dynamically balanced holder for said knives, and meanswhereby saidknives may .be adjusted and held at dametrically opposite positions insaid holder without disturbing the dynamic balancer of the cutoff,

said means including two racks'on'e of vwhich is attached to each knife,and a pinionV engaging said racks and provided with a series oit holeswhereby Iit may be turned.V i

4. In a'cigarette machine cutol'l', the combination with two alternatelyacting knives, of a dynamically balanced holder for said knives, andmeansvfor simultaneously and equally adjusting and holding said knivesat diametrically opposite positions vinlsaid holder without disturbingthe dynamic :bal-l` ance of the cutol, eachof saidknives*beingVsymmetrical inform but eccentrically posi' tioned in said holder. f

In testimony whereof, I havesligned my p35 name tothis specification.

Y '..DHOmS C. LS'HEEHAN

